Now imagine yourself for a while being in one of the following Japanese cities, Hiroshima or Nagasaki. You are having a normal day like always when suddenly you look up at the sky and see an airplane drop millions of papers warning you to get out of your city. The paper fliers tell you to leave your city because you are about to be bombed by a single bomb capable of destroying the entire city. You think it a joke so you do nothing as everyone else does. Three days pass and you are still thinking about what the paper said. Suddenly you hear the expected plane, your heart starts pumping faster, then you see the plane deploy a large object from the sky, you start thinking about what the paper said but now its too late. You see the object hit the ground. There is a large flash, people are running and screaming down the street. Then you realize it really was a bomb. This event took place in World War II when the United States dropped the atomic bomb in Japan. I am going to be speculating about speculation about the cause and effect of the atomic bomb. .
In 1939, the German born scientist Albert Einstein had informed President Roosevelt about the possibility of creating a powerful bomb. It would produce an extremely powerful explosion by splitting the atom. Einstein and other scientist feared that Germany might develop such a bomb first. In 1942, the United States set up a secret project called the Manhattan Project, to develop the first atomic bomb. The first test explosion of an atomic bomb occurred in the New Mexico Desert in July 1945. Roosevelt died in April 1945, and Vice President Harry S. Truman became President of the United States. Truman met with the British Prime Minister Winston Churchill and Joseph Stalin the Russian dictator in Potsdam, Germany, in July 1945. At the Potsdam Conference, a conference between the Allied forces to discuss war options, Truman learned of the successful test explosion of the atomic bomb and informed the other Allied leaders, that the atomic bomb was complete and ready.